WSVN's Christine Cruz works full time, has two kids and trains for half marathons.

Christine Cruz is the biggest fitness buff at WSVN. Channel 7's morning news anchor works full time, has two preteens, and trains for half marathons seven days a week. It seems paradoxical, but the more this Miami native exercises, the less tired she becomes.

Why do you train so much?

I have a really tough schedule. Waking up at 3 a.m. puts a lot of demands on the body, so staying fit is a way of staying in control, staying healthy. And in my profession, there are expectations to look as good as you can. I'm trying to defy gravity for as long as I can! I also like competing in races like half marathons, and exercise helps me get rid of stress if I had a bad day.

What's your workout routine?

I do a bit of everything. I'm a certified fitness instructor and every once in a while I teach boot camp or step class. On the days I don't run, if I feel down, I'll do the stair climber. I do weight training at LA Fitness or Shula's Athletic Club three days a week. But most of all, I love running. I normally run seven days a week.

Why do you love running?

It fits into being a mom. I can do it early, while everyone is sleeping. When you go to a class, you have to adjust your schedule to everyone else's. But running on your own, you have no excuse. You can always squeeze in 45 minutes.

How far do you run? And where?

I mostly run on a treadmill but sometimes on weekends at a park. I run between 30 and 40 miles per week, depending on what I'm training for. If my next race is only a 5K, I'll train less. I have one long run of 10 to 12 miles each week, usually on Sundays.

Which races have you participated in?

I've run a couple of marathons, but they take a while to recover. A half marathon is enough to feel I've run a long time, but I can recover fast. I can run one a month. I do the local circuit, including the ING Miami Half Marathon, the 13.1 Fort Lauderdale and the 13.1 Miami. And some out of the region.

What's your weight training?

Weights are not my passion, so I do just enough to keep in shape. I do my upper body one day a week, lower body one day, and on a third day is an overall workout. I train my abs every day, 100 sit-ups, and do 50 push-ups for resistance training.

Do you play any sports?

I play at the park with my kids all the time. We love tennis. My son loves basketball. My son and daughter have done 5Ks. It's so easy for kids to become couch potatoes with video games and TV, so I try to keep them active.

Do you have a fitness mantra?

Running is my therapy. Sometimes I'm having a bad day and as soon as I jump on the treadmill, I have clarity … The bigger the problem, the longer I run!

What's your diet?

I have a cheat day once a week and I plan for it every week. But during the week, I eat a lot of salads, fruits, veggies, the basics. It's not rocket science. We all know what's healthy. I eat a lot of chicken, red meat maybe once a month. I love turkey. I'm big on moderation. Everything is okay in moderation. If we want pizza, we'll have pizza. Not every day but maybe once a week. I like pizza, ice cream, sugar.